A collimator with ultra-small size,long focal length and high image quality was designed,the structure of full reflection off-axis two-mirror was used.The collimator focal length was 12 000 mm,effective aperture was Φ400 mm,within field of view 30 mm×30 mm the wavefront aberration was better than 1/20λ@632.8 nm.After light turning many times,the collimator dimensions were less than 1 000 mm×600 mm×500 mm,the total mass was less than 60 kg.By analysis and calculation,the environmental adaptability of collimator is better,and it meets the requirement of the normal launch site test.%设计一台用于CCD相机外场测试标定的超小体积、长焦距、高像质的平行光管,结构形式采用全反射离轴两镜式.设计的平行光管焦距1 2000 mm,有效口径Φ400 mm,在线视场30mm×30 mm范围内波像差优于λ/20@632.8 nm.光路经过多次折转后,平行光管外形尺寸小于1 000 mm×600 mm×500 mm,总质量小于60 kg.经分析计算,平行光管的环境适应性较好,能够满足被检相机正常发射场测试使用需求.
展开▼
